Casing clamp



June 9, 1925-.l

" miren.STATESPATENT- g OFFICE.

` THOMAS E.' ROBINSON, or TULSA,OKLAHOMA.4

^ anduseful Improvements in Cas' mesmel OLAM1=. I'-

npllfiatiijmea october c, .igea serial' Nef'essere.

Toiall whom t may comem: Be. it linorwn that I, THOMAS E. RoemsON, ay citizen of the United States, residing at Tulsa in the county of Tulsa and State of Oklahoma, have invented certain new Clamps', of which the following` is a 'specihcation My invention relates generally, tooilwell apparatus and in particular to well-casing clamps. Objects thereof are: a separable clamp for supporting and holding a Well casing, the component parts thereof being secured by interlocking engagement; a clamp of this character adapted to engage a ycasing at any point; ay clamp provided with insertable casing gripping means, and means to p-reventspreading of the clamp when supporting a casing. Other objects will' be apparent from the description.

novel construction, combination land ar. rangement of parts hereinafter described and claimed, and illustrated in the accomf panying drawings, of which;

Figure 1 isa top plan view of the clamp as applied, Figure 2, aside elevation thereof, partly vbroken away,

Figure 3, an end view, with part `broken awa for illustration of detail;

ing side members 1 and 2. Each side member is identical in constriction, for` interchangeability, and the central portion of the base, where the casing gripping means is positioned, is of a greaterheight than-at its'ends, to provide a thickened portion for 4 msuring greater strength. `From the center to each end, the upy r faces of each side member are downwar ly inclined, while .their bottom faces are horizontal, provid-: A A

mentof themem'bers around the well-' casfing. The wedge plates yaretheninserted ing a Hat fbottom for the base.

- The central portion of each side member is provided with a semioircular. bore so lthat when in assembled position, the base will 'surround a well casing section 3. f'lhe'face ofeaoh semicircular bore or 'recess is tapereddownwardly for wedging engagementwith a reversely tapered semicircular clamping.

plaire 4t and 5, provided with serrated innerfaces T6 for gripping enga ement with the. l

' stood that the--i'nvention is"n'ot limited .r.to

casing "section when applie To each wedge-platee and 5 is suitably i secured -a handle 7 vwhereby the-plate may :ping downwithin the central bore'o'the A The details of the invention reside in the' top of' a well-and inoperationoneside side memberV is 'then appli-ed"froin''the Opposite side of the -well casingnandnested..

Athencasing will be taken upgbythe'base this construction thecasing Amay. be 'rebe lifted-from engagement with the. base, andV displacement "of the plates with respect" to the vside lmembers isl prevented by engagement of dovetailed lugs Sand 9 on the back of each plate respectively, in dove-- tailed sockets 10 -and lll-'in the respective side members 1 and 2- at diametrically opposed .points The 'bottoni ofleach socketis'closed to prevent the plates from' slip- Between the Outer .lends and the 'central' portion, eac-lli side member 1 and 2yof thel base scur-vedOntw-ardly in Abellsha'pedfor. f mation on-- its' Outer"Wall,"While the abut-"10 ting inner wallsx are arranged 'for' interlocking engagemexm .The member lfcarf ries. twojlateral extensionsvv or lshanks'l12' and 13 onopposite sides of the-central. por-j 'l tion, which project beyond the kmedianlinev 15.. ofthe baseand terminate. invknuckles -14 and 15' extendinginthe-.same direction; The' side mem-'ber 2is of 'eXactzcounterpa-rt for-'1 mation with reversely' arrangedl shanks'fgl f and 17 and knuckles *18 "and `19., 'Ifherefl l 'spective y"knuckles overlapfand, interlock, y eli'ectuallyI joining '.'the 'members preventing spreading thereof. lille/meets ing, walls of ythe -side members' 'at j opposite t sides of the central portion are arrangedonf v8 54 opposite -sidesO-the median lineofljthe' y y base, as shownin Figure `l, thus :providing: stronger-Shanks :13 and 17, than. would..othI-,V` erwise be the -l The clamp is designed to A'aedhatjthe member' is placed in--position with itsendS resting on suitable-supports.` I The-"other within the; iirst "for interlocking engagewahinthe base-1mi the downward pun a iw the Casing heid a the desi-'rea' point .With j tained at any ,point irrespective .ofthe -cou'- y While, @Etain .details-fam :tail illus Itrated and describedll desire it to be under# wells ccmwisa baseormed mf? tw@ qual size 1em- Lzwing' their intfamediata portions ldap/md t sun-round am @il We casing, interlocking owerapping knuckles imagmb 1j; {o1-med on the inner WAH@` of said mem- A casing @la nd oil we; casing, lai;- y and 1* Wzvls ou' said membas, knuckles 'L shmks adapted for ove misa-flocking Engagement, and ih@ meeting mails 01E the base members adjacent the censids of the median ne of the assembe base.

ment at ('{ametrcally opgons'fe points with l'espeui to ihe Icasmg to l'om the soie mailings for securing the base members in assembled iure.

En testimony whereof afx my signa- THUMAS E. RQBILNSQN.

amending I* 

